Home / 207,162,231,286.40-285,880,861,529.86-115,712,083,406.24

Finding the Fourth Proportional to 207,162,231,286.40, 285,880,861,529.86 and 115,712,083,406.24

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Solution

The fourth proportional to 207,162,231,286.40, 285,880,861,529.86 and 115,712,083,406.24 is: 159,680,989,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,162,231,286.40 : 285,880,861,529.86 = 115,712,083,406.24 : x
  2. Step 2: Convert to fraction form
    207,162,231,286.40/285,880,861,529.86 = 115,712,083,406.24/x
  3. Step 3: Cross multiply
    207,162,231,286.40x = 285,880,861,529.86 × 115,712,083,406.24
  4. Step 4: Simplify right side
    207,162,231,286.40x = 33,079,870,093,590,909,681,664
  5. Step 5: Solve for x
    x = 33,079,870,093,590,909,681,664/207,162,231,286.40
  6. Step 6: Final answer
    x = 159,680,989,571.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.